C312312111133131212111133131133133313331323223313231311331323132213221323311   >>    C31231211113313121211113313113313331333132322331323131133132313221322132331   <<    C312312111133131212111133131133133313331323223313231311331323132213221323313   >>      C312312111133131212111133131133133313331323223313231311331323132213221323312   >>